ALL GDB commands：
| COMMAND | DESCRIPTION |
|---|---|
| help | List gdb command categories |
| help category | List gdb commands of category |
| help command | Displays description of command |
| apropos search-word | Display commands list containing search-word in their help description |
| info args i args |
Displays arguments of current function |
| info breakpoints info break info b i b |
Displays list of breakpoints |
| info break breakpoint-number i b breakpoint-number |
Displays description of breakpoint having breakpoint-number |
| info watchpoints i watchpoints |
Displays list of watchpoints |
| info registers i r |
Display processor's register contents |
| info threads i threads |
Display information about current thread |
| info set i set |
List set-able options |
| r | Start running program until a breakpoint or end of program |
| Breakpoints and Watchpoints | |
| break funname break line-no break ClassName::funcName |
Set a breakpoint at specified function or line number. |
| break +line-offset break -line-offset |
Set a breakpoint at specified number of lines forward or backward from current line of execution. |
| break filename:funcname | Set a breapoint at specified funcname of given filename. |
| break filename:line-no | Set a breakpoint at given line-no of specified filename. |
| break *address | Set a breakpoint at specified instrunction address. |
| break line-no if condition | Set a conditional breakpoint at line-no of current file. Program will suspend only when condition is true. |
| break line thread thread-no | Set a breakpoint at line in thread with thread-no. |
| tbreak | tbreak is similar to break but it will temporary breakpoint. i.e. Breakpoint will be deleted once it is hit. |
| watch condition | Set a watchpoint for given condition. Program will suspend when condition is true. |
| clear clear function clear line-number |
Delete breakpoints as identified by command option. Delete all breakpoints in function Delete breakpoints at given line |
| delete | Delete all breakpoints, watchpoints, or catchpoints. |
| delete breakpoint-number delete range |
Delete the breakpoints, watchpoints, or catchpoints specified by number or ranges. |
| disable breakpoint-number disable range enable breakpoint-number enable range |
Enable/Disable breakpoints, watchpoints or catchpoints specified by number or ranges. |
| enable breakpoint-number once | Enables given breakpoint once. And disables it after it is hit. |
| Program Execution | |
| continue c |
Continues/Resumes running the program until the next breakpoint or end of program |
| continue number | Continue but ignore current breakpoint number times. |
| finish | Continue until the current function is finished |
| step | Runs the next line of the program |
| step N | Runs the next N lines of program |
| next | Like s, but it does not step into functions |
| print var | Prints the current value of the variable "var" |
| set var=val | Assign "val" value to the variable "var" |
| backtrace | Prints a stack trace |
| q | Quit from gdb |
From：www.gdbtutorial.com/gdb_commands